blob: 60908984322c91ca937c07ffb94bf68882d17001 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
#!/bin/sh -e
# (C) 2008 Canonical Ltd.
# Author: Martin Pitt <martin.pitt@ubuntu.com>
# License: GPL v2 or later
# modified by David D Lowe and Thomas Detoux
#
# Setup user and temporary home directory for guest session.
# If this succeeds, this script needs to print the username as the last line to
# stdout.
export TEXTDOMAINDIR=/usr/share/locale-langpack
export TEXTDOMAIN=lightdm
# set the system wide locale for gettext calls
if [ -f /etc/default/locale ]; then
. /etc/default/locale
LANGUAGE=
export LANG LANGUAGE
fi
add_account ()
{
HOME=`mktemp -td guest-XXXXXX`
USER=`echo $HOME | sed 's/\(.*\)guest/guest/'`
# if $USER already exists, it must be a locked system account with no existing
# home directory
if PWSTAT=`passwd -S "$USER"` 2>/dev/null; then
if [ "`echo \"$PWSTAT\" | cut -f2 -d\ `" != "L" ]; then
echo "User account $USER already exists and is not locked"
exit 1
fi
PWENT=`getent passwd "$USER"` || {
echo "getent passwd $USER failed"
exit 1
}
GUEST_UID=`echo "$PWENT" | cut -f3 -d:`
if [ "$GUEST_UID" -ge 500 ]; then
echo "Account $USER is not a system user"
exit 1
fi
HOME=`echo "$PWENT" | cut -f6 -d:`
if [ "$HOME" != / ] && [ "${HOME#/tmp}" = "$HOME" ] && [ -d "$HOME" ]; then
echo "Home directory of $USER already exists"
exit 1
fi
else
# does not exist, so create it
adduser --system --no-create-home --home / --gecos $(gettext "Guest") --group --shell /bin/bash $USER || {
umount "$HOME"
rm -rf "$HOME"
exit 1
}
fi
# create temporary home directory
mount -t tmpfs -o mode=700 none "$HOME" || { rm -rf "$HOME"; exit 1; }
chown $USER:$USER "$HOME"
gs_skel=/etc/guest-session/skel/
if [ -d "$gs_skel" ] && [ -n "`find $gs_skel -type f`" ]; then
cp -rT $gs_skel "$HOME"
else
cp -rT /etc/skel/ "$HOME"
fi
chown -R $USER:$USER "$HOME"
usermod -d "$HOME" "$USER"
#
# setup session
#
# disable some services that are unnecessary for the guest session
mkdir --parents "$HOME"/.config/autostart
cd /etc/xdg/autostart/
services="jockey-kde.desktop jockey-gtk.desktop update-notifier.desktop user-dirs-update-gtk.desktop"
for service in $services
do
if [ -e /etc/xdg/autostart/"$service" ] ; then
cp "$service" "$HOME"/.config/autostart
echo "X-GNOME-Autostart-enabled=false" >> "$HOME"/.config/autostart/"$service"
fi
done
# disable Unity shortcut hint
mkdir -p "$HOME"/.cache/unity
touch "$HOME"/.cache/unity/first_run.stamp
STARTUP="$HOME"/.config/autostart/startup-commands.desktop
echo "[Desktop Entry]" > $STARTUP
echo "Name=Startup commands" >> $STARTUP
echo "Type=Application" >> $STARTUP
echo "NoDisplay=true" >> $STARTUP
echo "Exec=/usr/lib/lightdm/guest-session-auto.sh" >> $STARTUP
echo "export DIALOG_SLEEP=4" >> "$HOME"/.profile
mkdir -p "$HOME"/.kde/share/config
echo "[Basic Settings]" >> "$HOME"/.kde/share/config/nepomukserverrc
echo "Start Nepomuk=false" >> "$HOME"/.kde/share/config/nepomukserverrc
echo "[Event]" >> "$HOME"/.kde/share/config/notificationhelper
echo "hideHookNotifier=true" >> "$HOME"/.kde/share/config/notificationhelper
echo "hideInstallNotifier=true" >> "$HOME"/.kde/share/config/notificationhelper
echo "hideRestartNotifier=true" >> "$HOME"/.kde/share/config/notificationhelper
# Load restricted session
#dmrc='[Desktop]\nSession=guest-restricted'
#/bin/echo -e "$dmrc" > "$HOME"/.dmrc
# set possible local guest session preferences
if [ -f /etc/guest-session/prefs.sh ]; then
. /etc/guest-session/prefs.sh
fi
chown -R $USER:$USER "$HOME"
echo $USER
}
remove_account ()
{
USER=$1
PWENT=`getent passwd "$USER"` || {
echo "Error: invalid user $USER"
exit 1
}
UID=`echo "$PWENT" | cut -f3 -d:`
HOME=`echo "$PWENT" | cut -f6 -d:`
if [ "$UID" -ge 500 ]; then
echo "Error: user $USER is not a system user."
exit 1
fi
if [ "${HOME}" = "${HOME#/tmp/}" ]; then
echo "Error: home directory $HOME is not in /tmp/."
exit 1
fi
# kill all remaining processes
while ps h -u "$USER" >/dev/null; do
killall -9 -u "$USER" || true
sleep 0.2;
done
umount "$HOME" || umount -l "$HOME" || true
rm -rf "$HOME"
# remove leftovers in /tmp
find /tmp -mindepth 1 -maxdepth 1 -uid "$UID" -print0 | xargs -0 rm -rf || true
# remove possible /media/guest-XXXXXX folder
if [ -d /media/"$USER" ]; then
for dir in $( find /media/"$USER" -mindepth 1 -maxdepth 1 ); do
umount "$dir" || true
done
rmdir /media/"$USER" || true
fi
deluser --system "$USER"
}
case "$1" in
add)
add_account
;;
remove)
if [ -z $2 ] ; then
echo "Usage: $0 remove [account]"
exit 1
fi
remove_account $2
;;
*)
echo "Usage: $0 add|remove"
exit 1
esac
|
